Old Goa, also called Velha Goa, is beside the Mandovi River in the western Indian state of Goa. The city was established by the Bijapur Sultanate in the 15th century and served as capital of Portuguese India from the 16th century until its abandonment in the 18th century due to a plague during the mid-16th century, the Portuguese colony of Goa, especially Velha Goa, was the center of Christianization. The churches and convents of Goa, the former capital of the Portuguese Indies – particularly the Bom Jesus Basilica, which contains the tomb of St Francis-Xavier – illustrate the evangelization of Asia. Those monuments proved influential in spreading forms of Manueline, Mannerist and Baroque art in all the countries of Asia where missions were established. UNESCO listed seven churches and convents in Goa Velha in its World Heritage Site designation: Church of Bom Jesus, Saint Catherine’s Chapel, Church and Convent of Saint Francis of Assisi, The Cathedral, Saint Gaetan and its seminary, Our Lady of the Rosary, and Saint Augustine Tower. It retains its religious significance in modern-day Goa, notably in its relations with Roman Catholicism.